Amazon India — refund issue with online amazon india

I had raised refund request for two product for two order at amazon site. When courier person from amazon came for pick up, he did not know which product he need to pick, he told us that you give me both, i will upload at amazon site. And he gave tracking id [protected]. When we check the site, there was update for one product only. We immediately raised an concern to amazon customer care. They told us wait for 3-4 weeks, i will get me refund back, but now its 3 months. There is no response from their site. There are really going very irresponsible/careless about customer service.